/*
 * Copyright 2010 jun.enomoto<jun.enomoto@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package foursquare4j.xml.handler;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

import foursquare4j.type.User;
import foursquare4j.type.Users;

public class UsersHandler extends Handler<Users> {

	private static enum E {
		_, USER
	}

	private E e;

	private Users users;
	private User user;

	@Override
	public void startDocument() throws SAXException {
		users = new Users();
	}

	@Override
	public void startElement(final String uri, final String localName, final String qName, final Attributes attributes) throws SAXException {
		super.startElement(uri, localName, qName, attributes);
		if ("users".equals(qName) && e == null) e = E._;
		else if ("user".equals(qName) && e == E._) {
			e = E.USER;
			users.add(user = new User());
		}
	}

	@Override
	public void endElement(final String uri, final String localName, final String qName) throws SAXException {
		if ("users".equals(qName) && e == E._) e = null;
		else if ("user".equals(qName) && e == E.USER) e = E._;
	}

	@Override
	protected void characters(final String text) throws SAXException {
		switch (e) {
			case _:
				break;
			case USER:
				set(user, tag, text);
				break;
		}
	}

	@Override
	public Users getObject() {
		return users;
	}
}